{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172298",
    "entityType": "User",
    "nonce": "0xc73017b762aed7d36973ba56f84355662a79a13c545cd7a40f429ee863def2f1",
    "signature": "0x90bd1b26f5e143671b22a75f3f2624ccc5df85d93b685fed14326735b760763526e90a8eb36c51cadcf87eefbdc921b34b76f2705fc22d248386027e0f6cb9b81c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}